quack vs surgeon

quack

noun
  • A fraudulent healer, especially a bombastic peddler in worthless treatments, a doctor who makes false diagnoses for monetary benefit, or an untrained or poorly trained doctor who uses fraudulent credentials to attract patients 

  • Any similar charlatan or incompetent professional. 

  • The sound made by a duck. 

  • Any doctor. 

verb
  • To make a noise like a duck. 

  • Of a queen bee: to make a high-pitched sound during certain stages of development. 

  • To practice or commit quackery (fraudulent medicine). 

adj
  • Falsely presented as having medicinal powers. 

surgeon

noun
  • One who performs surgery; a doctor who performs operations on people or animals. 

  • A surgeonfish. 

How often have the words quack and surgeon occurred in a corpus of books? (source: Google Ngram Viewer )